Accuracy of Photogrammetric Three-Dimensional Facial Models Reconstruction Compared With Direct Anthropometry

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06897852

Enrollment

Registered

2025-03-27

Start date

2024-09-01

Completion date

2025-01-01

Last updated

2025-03-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental Malocclusion, Diagnosis, Facial Asymmetry

Keywords

facial scanning, photogrammetry, facial anthropometry

Brief summary

Accuracy of Two Different Photogrammetric Software for Three Dimensional Facial Model Reconstructions Compared with Direct Facial Anthropometry.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

OTHER

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Participants aged 18 or older

Exclusion criteria

* Presence of: 1. Extensive facial hair (beards). 2. Significant facial defects. 3. Surgical scars. 4. Neuromuscular disorders that may hinder stability of head during image acquisition. 5. Accessories that could interfere with image acquisition.

Design outcomes

Primary

Measure	Time frame	Description
Accuracy of Photogrammetry in Generating 3D Facial Models - Linear Measurements	Baseline (procedure)	* A 3D model was generated for each volunteer using photogrammetry software. Anthropometric linear measurements was taken using a digital caliper, and photogrammetric linear measurements was extracted from the 3D model. * Two LEGO® blocks with uniform dimensions were attached to the participants' faces to scale the 3D model to actual metric dimensions. Unit of Measure: millimeters(mm)
Accuracy of Photogrammetry in Generating 3D Facial Models - Angular Measurements	Baseline (procedure)	* This outcome measure focuses on the accuracy of photogrammetry in capturing and reproducing angular measurements of facial features. * Volunteers' 3D facial models were generated using photogrammetry software from multiple photos. * Two LEGO® blocks with uniform dimensions were attached to the forehead and cheek for scaling and reference. Angular measurements, based on these blocks, were extracted from the 3D model. The measurements were compared to validate the method's precision in reproducing angular dimensions. Unit of Measure: Degrees (°)

Countries

Egypt

Outcome results